From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> To: Jesse Brandeburg <jesse.brandeburg@intel.com>, Niklas Schnelle <schnelle@linux.ibm.com>, Tony Nguyen <anthony.l.nguyen@intel.com> Cc: <linux-acpi@vger.kernel.org>, <netdev@vger.kernel.org>, "intel-wired-lan@lists.osuosl.org" <intel-wired-lan@lists.osuosl.org> Subject: Re: Oops in during sriov_enable with ixgbe driver Date: Thu, 30 Sep 2021 19:38:37 +0200 [thread overview] Message-ID: <b9e461a5-75de-6f45-1709-d9573492f7ac@intel.com> (raw) In-Reply-To: <5ea40608-388e-1137-9b86-85aad1cad6f6@intel.com> On 9/30/2021 7:31 PM, Jesse Brandeburg wrote: > On 9/28/2021 4:56 AM, Niklas Schnelle wrote: >> Hi Jesse, Hi Tony, >> >> Since v5.15-rc1 I've been having problems with enabling SR-IOV VFs on >> my private workstation with an Intel 82599 NIC with the ixgbe driver. I >> haven't had time to bisect or look closer but since it still happens on >> v5.15-rc3 I wanted to at least check if you're aware of the problem as >> I couldn't find anything on the web. > We haven't heard anything of this problem. > > >> I get below Oops when trying "echo 2 > /sys/bus/pci/.../sriov_numvfs" >> and suspect that the earlier ACPI messages could have something to do >> with that, absolutely not an ACPI expert though. If there is a need I >> could do a bisect. > Hi Niklas, thanks for the report, I added the Intel Driver's list for > more exposure. > > I asked the developers working on that driver to take a look and they > tried to reproduce, and were unable to do so. This might be related to > your platform, which strongly suggests that the ACPI stuff may be related. > > We have tried to reproduce but everything works fine no call trace in > scenario with creating VF. > > This is good in that it doesn't seem to be a general failure, you may > want to file a kernel bugzilla (bugzilla.kernel.org) to track the issue, > and I hope that @Rafael might have some insight. > > This issue may be related to changes in acpi_pci_find_companion, > but as I say, we are not able to reproduce this. > > commit 59dc33252ee777e02332774fbdf3381b1d5d5f5d > Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > Date: Tue Aug 24 16:43:55 2021 +0200 > PCI: VMD: ACPI: Make ACPI companion lookup work for VMD bus This change doesn't affect any devices beyond the ones on the VMD bus. > At this point maybe a bisect would be helpful, since this seems to be a > corner case that we used to handle but no longer do. > > Thanks! > Jesse
WARNING: multiple messages have this Message-ID (diff)
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com> To: intel-wired-lan@osuosl.org Subject: [Intel-wired-lan] Oops in during sriov_enable with ixgbe driver Date: Thu, 30 Sep 2021 19:38:37 +0200 [thread overview] Message-ID: <b9e461a5-75de-6f45-1709-d9573492f7ac@intel.com> (raw) In-Reply-To: <5ea40608-388e-1137-9b86-85aad1cad6f6@intel.com> On 9/30/2021 7:31 PM, Jesse Brandeburg wrote: > On 9/28/2021 4:56 AM, Niklas Schnelle wrote: >> Hi Jesse, Hi Tony, >> >> Since v5.15-rc1 I've been having problems with enabling SR-IOV VFs on >> my private workstation with an Intel 82599 NIC with the ixgbe driver. I >> haven't had time to bisect or look closer but since it still happens on >> v5.15-rc3 I wanted to at least check if you're aware of the problem as >> I couldn't find anything on the web. > We haven't heard anything of this problem. > > >> I get below Oops when trying "echo 2 > /sys/bus/pci/.../sriov_numvfs" >> and suspect that the earlier ACPI messages could have something to do >> with that, absolutely not an ACPI expert though. If there is a need I >> could do a bisect. > Hi Niklas, thanks for the report, I added the Intel Driver's list for > more exposure. > > I asked the developers working on that driver to take a look and they > tried to reproduce, and were unable to do so. This might be related to > your platform, which strongly suggests that the ACPI stuff may be related. > > We have tried to reproduce but everything works fine no call trace in > scenario with creating VF. > > This is good in that it doesn't seem to be a general failure, you may > want to file a kernel bugzilla (bugzilla.kernel.org) to track the issue, > and I hope that @Rafael might have some insight. > > This issue may be related to changes in acpi_pci_find_companion, > but as I say, we are not able to reproduce this. > > commit 59dc33252ee777e02332774fbdf3381b1d5d5f5d > Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > Date: Tue Aug 24 16:43:55 2021 +0200 > PCI: VMD: ACPI: Make ACPI companion lookup work for VMD bus This change doesn't affect any devices beyond the ones on the VMD bus. > At this point maybe a bisect would be helpful, since this seems to be a > corner case that we used to handle but no longer do. > > Thanks! > Jesse
next prev parent reply other threads:[~2021-09-30 17:38 UTC|newest] Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-09-28 11:56 Oops in during sriov_enable with ixgbe driver Niklas Schnelle 2021-09-30 17:31 ` Jesse Brandeburg 2021-09-30 17:31 ` [Intel-wired-lan] " Jesse Brandeburg 2021-09-30 17:38 ` Rafael J. Wysocki [this message] 2021-09-30 17:38 ` Rafael J. Wysocki 2021-09-30 18:20 ` Rafael J. Wysocki 2021-09-30 18:20 ` [Intel-wired-lan] " Rafael J. Wysocki 2021-09-30 18:37 ` Rafael J. Wysocki 2021-09-30 18:37 ` [Intel-wired-lan] " Rafael J. Wysocki 2021-10-01 8:23 ` Niklas Schnelle 2021-10-01 8:23 ` [Intel-wired-lan] " Niklas Schnelle 2021-10-01 13:21 ` Rafael J. Wysocki 2021-10-01 13:21 ` [Intel-wired-lan] " Rafael J. Wysocki
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